What is a domain name analytic? 
  Is abuzz domain names to IP addresses conversion process.    IP address is your logo on the Web site address of the figures, to simple good mind, instead of using domain names to ip address marking site address.    Analysis of domain names completed by the DNS server. 

  What is the A record? 
  A (Address) is used to record the designated host (or domain names) corresponding IP address records.    Users of the Web site under the domain name servers pointing to the web server on their own.    At the same time you can also set up two domain names domain. 

  What is the MX record? 
  Routing mail records, users can under the domain name to the mail server at their own mail server, and then can control all its own e-mail settings.    Online you can enter your server's IP address, you may be under the domain of the e-mail to all your own settings accordingly mail server. 

  What is CNAME record? 
  Namely: Alias Records.    This allows you to record multiple names mapped to the same computer.    WWW is used to provide computer services and MAIL.    For example, a computer called "host.mydomain.com" (A records).    It also offers MAIL WWW and services, in order to facilitate user access services.    The computer can be set up two aliases (CNAME): WWW and MAIL.    This is the full name of the alias www.mydomain.com and "mail.mydomain.com."    In effect, they all point to "host.mydomain.com." 

  What is the TTL value? 
  TTL value name is the "survival time (Time To Live)", said that it simply records in the DNS DNS server cache time.    To understand TTL value, please look at the following example: 
  Assumptions, there is a domain name myhost.abc.com (In fact, this is a DNS records, usually expressed in abc.com jurisdictions have a host named myhost) for the corresponding IP address 1.1.1.1, and its TTL to 10 points 10 minutes.    The domain name or that of the records stored in a dns.abc.com called the DNS server. 

  We now have a user to type in the browser address (or URL): http://myhost.abc.com then what will happen? 

  The visitors to the designated DNS server (or his ISP, Internet service providers, and dynamic allocation to him) 8.8.8.8 He will attempt to explain myhost.abc.com, of course, 8.8.8.8 Taiwan DNS server because this does not include myhost.abc.com this information is not immediately analysis, but through the global DNS recursive query, the final positioning Taiwan to dns.abc.com this DNS server, DNS server dns.abc.com that Taiwan will myhost.abc . com corresponding IP address 1.1.1.1 told Taiwan 8.8.8.8 This DNS server, surprise, by telling users 8.8.8.8 results.    8.8.8.8 In order to speed up the process of myhost.abc.com after this record analysis, the results would be just 1.1.1.1 retain for a period of time, and this is TTL time, during this period of time if the user has on this myhost.abc.com Analysis of the records request, it would directly tell users 1.1.1.1, it will expire when the TTL repeat the process.